Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Archery Accuracy0.01871433274%7.2Harden
Average Character0.00271831166691%2.0Easyen
Black and White0.0759218615081%4.8Mediumen
Circle Bounce0.002001018887%5.4Mediumen
Diagonals0.001853593966%7.2Harden
Dorm Room Divide0.0147625017470%6.4Harden
Double Password0.00192598242693%1.5Easyen
Fail Them All!0.008991448156%7.8Harden
Hopscotch 5000.1187817612571%7.1Harden
Overdraft0.00361319117689%1.9Easyen
Problem Set Construction0.01940513773%6.6Harden
Reversibly Cyclic Strings0.003130625985%3.3Mediumen
Rise and Fall0.008832923973%4.6Mediumen
Scaling Recipe0.003490382992%1.9Easyen
Shortest Missing Subsequences0.0939413910273%6.0Harden
Square Bounce0.00470614370%6.7Harden
Tetris Generation0.009040626164%6.2Harden
Tournament Seeding0.0122024720382%4.0Mediumen
Tree Hopping0.0289327820674%6.1Harden
Who Goes There?0.0011946637079%3.7Mediumen
XOR Island0.002791097468%6.6Harden